
/**
 * 乘法
 * @param arg1
 * @param arg2
 * @returns {Number}
 */
function accMul(arg1, arg2) {
    var m = 0, s1 = arg1.toString(), s2 = arg2.toString();
    try { m += s1.split(".")[1].length } catch (e) { }
    try { m += s2.split(".")[1].length } catch (e) { }
    var num = Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m)
    return returnFloat(num);
}
/**
 * 除法
 * @param arg1
 * @param arg2
 * @returns {Number}
 */
function accDiv(arg1, arg2) {
    var t1 = 0, t2 = 0, r1, r2;
    try { t1 = arg1.toString().split(".")[1].length } catch (e) { }
    try { t2 = arg2.toString().split(".")[1].length } catch (e) { }
    with (Math) {
        r1 = Number(arg1.toString().replace(".", ""))
        r2 = Number(arg2.toString().replace(".", ""))
        var num = (r1 / r2) * pow(10, t2 - t1);
        return returnFloat(num);
    }
}
/**
 * 加法
 * @param arg1
 * @param arg2
 * @returns {Number}
 */
function accAdd(arg1, arg2) {
    var r1, r2, m, c;
    try { r1 = arg1.toString().split(".")[1].length } catch (e) { r1 = 0 }
    try { r2 = arg2.toString().split(".")[1].length } catch (e) { r2 = 0 }
    c = Math.abs(r1 - r2);
    m = Math.pow(10, Math.max(r1, r2))
    if (c > 0) {
        var cm = Math.pow(10, c);
        if (r1 > r2) {
            arg1 = Number(arg1.toString().replace(".", ""));
            arg2 = Number(arg2.toString().replace(".", "")) * cm;
        }
        else {
            arg1 = Number(arg1.toString().replace(".", "")) * cm;
            arg2 = Number(arg2.toString().replace(".", ""));
        }
    }
    else {
        arg1 = Number(arg1.toString().replace(".", ""));
        arg2 = Number(arg2.toString().replace(".", ""));
    }
    var num = (arg1 + arg2) / m;
    return returnFloat(num);
}
/**
 * 减法
 * @param arg1
 * @param arg2
 * @returns
 */
function accSub(arg1,arg2){
	var r1,r2,m,n;
	try{r1=arg1.toString().split(".")[1].length}catch(e){r1=0}
	try{r2=arg2.toString().split(".")[1].length}catch(e){r2=0}
	m=Math.pow(10,Math.max(r1,r2));
	//last modify by deeka
	//动态控制精度长度
	n=(r1>=r2)?r1:r2;
	var num = ((arg1*m-arg2*m)/m).toFixed(n);
	return returnFloat(num);
}


function returnFloat(value){
 	var value=Math.round(parseFloat(value)*100)/100;
 	var xsd=value.toString().split(".");
 	if(xsd.length==1){
 		value=value.toString()+".00";
 		return value;
 	}
 	if(xsd.length>1){
 		if(xsd[1].length<2){
 			value=value.toString()+"0";
 		}
 		return value;
 	}
}